/*******************************************************************************
 * Copyright 2007, 2009 InnovaSoft SA http://www.innovasoft.biz/
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *       http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *******************************************************************************/

package biz.innovasoft.nodb.query;


public enum Operator {
	AND, OR, NOT, RANGE, EQUAL, NOT_EQUAL, UNKNOWN;

	public String toString() {
		switch (this) {
		case AND:
			return "&&";
		case OR:
			return "||";
		case EQUAL:
			return "==";			
		case NOT_EQUAL:
			return "!=";
		default:
			return "??";
		}

	}
	
}
